To understand what TPACK is we must first understand the basis of: Technological Knowledge; Pedagogical Knowledge; and Content Knowledge.
Pedagogy is the art, strategies or ways of teaching; Teachers want their students to engage and ultimately learn. It is only with the use of good pedagogical techniques that this occurs.
Content Knowledge is the knowledge that the teacher has the content that they are teaching. Ie. The subject matter. Before a teacher can teach content to a student the teacher must have an understanding of the content being taught. The better the teacher’s content knowledge the more likely it is that such knowledge can be passed to the students.
Technological Knowledge is the knowledge of how to use technologies. Is it enough to just know how to use the technologies? How will this assist your class?
Just as it was important to know what pedagogies to use to teach the content it is just as important to know the ways to use technology to teach and the knowledge of the affects that using those technologies will have on the students. What are some affects that may result from students using technology at school?
So if we add Technological Knowledge, Pedagogical Knowledge and Content Knowledge together what will we get?